VulnerabilityModified

CVE-2023-23846

The affected process becomes immediately unresponsive, resulting in denial of service and excessive resource consumption.

HIGH 7.5EPSS 0.80%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.80%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Due to insufficient length validation in the Open5GS GTP library versions prior to versions 2.4.13 and 2.5.7, when parsing extension headers in GPRS tunneling protocol (GPTv1-U) messages, a protocol payload with any extension header length set to zero causes an infinite loop. The affected process becomes immediately unresponsive, resulting in denial of service and excessive resource consumption. CVSS3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.80% probability · 54th percentile
CISA KEV: Not listed
Weakness: CWE-770
Affected: open5gs/open5gs
Source: disclosure@synopsys.com

References

https://www.synopsys.com/blogs/software-security/cyrc-advisory-open5gs-gtp-library/Third Party Advisory
https://www.synopsys.com/blogs/software-security/cyrc-advisory-open5gs-gtp-library/Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.